Question

Find the lateral surface area and total surface area of a cube of edge $\mathbf{10}\mathbf{}\mathit{c}\mathit{m}\mathbf{.}$

Answer 1

Step 1: Finding the Total surface area

Let $a$ be the edge of the cube, then

Total surface area $=4a^{2}sq.units$

$=4\times {\left(10\right)}^2$

$=4\times 100$

$=400c{m}^2$

Hence, the total surface area of a cube is $400c{m}^2$.

Step 2: Finding Lateral surface area

Let $a$ be the edge of the cube, then

Lateral surface area $=6a^{2}sq.units$

$=6\times {\left(10\right)}^2$

$=6\times 100$

$=600c{m}^2$

Hence, the lateral surface area of a cube is $600c{m}^2$.